Comment by WackyFighter

It doesn't matter who does it. To stream you need to send the player input across the net, process, render and then send that back to the client. There is no way to eliminate that input lag.

Any game that is requires high APM (Action Per Minute) will be horrible to play via streaming.

I feel as if I shouldn't really need to explain this on this site, because it should be blindingly obvious that this will always be an issue with any streamed games for the same reason you have a several seconds lag between what happening on a live sports event and what you see on the screen.